[Boost-users] Re: a question on boost::is_function

From: David Abrahams (dave_at_[hidden])
Date: 2005-01-05 12:17:24

Kevin Lee wrote:
> should the following code return: true or false?
> 
>       boost::is_function<int (*)(int)>::value

false.

> if the result is false, why? I don't understand it.

That's a pointer-to-function type, not a function type.  Try

  boost::is_function<int(int)>::value

I know it's confusing.  Most C++ programmers never see a function type
in the wild.  You can use remove_pointer to turn a pointer-to-function
into a function.

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com